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Brownmillerite

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SYA516946

Brownmillerite

Type Locality

Description Tabs

Description
Locality: 
Caspar Quarry, Bellerberg, Ettringen, Eifel, Mayen-Koblenz, Rhineland-Palatinate, Germany
Class: 
Crystals on Matrix
Size Range: 
Thumbnail (1-3cm)
Size: 
2.2 × 1.9 × 1.2 cm
Description

A rich specimen with many red-brown tabular brownmillerite crystals  on matrix.

Very nice under magnification.

Mineral Data
What's on the rock

Brownmillerite

Formula: 
Ca2(Al,Fe3+)2O5
Strunz: 
4.AC.10
Crystal System: 
Orthorhombic
Hardness: 
0.0
Type Locality: 
Mayener Feld, Southern lava flow, Bellerberg volcano, Ettringen, Mayen, Eifel, Rhineland-Palatinate, Germany

Seller Information

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